For the health of it

Walking down the red carpet in a beautiful evening gown or a classy tuxedo is one motivation for celebrities to be in top shape. With the Oscars scheduled for Sunday, Feb. 24, many celebrities are taking their workout routines to the next level to have their bodies red-carpet ready.

Although some celebrities resort to plastic surgery and diet pills to try to stay slim and trim, the real secret to having a rocking bod lies with those celebrities who use determination, hard work and sweat.

Take a look at these three celebrities’ routines to discover the secret behind this year’s Oscar physiques.

Lucy Lui has been in movies like “Kill Bill” and “Charlie’s Angels” and is an example of how to stay in great shape while still managing a busy life. To keep her body toned, the actress relies on regular Pilates sessions. One of her favorite moves targets the core, hips, butt and legs.

-Stand with your feet hip-distance apart and place your hands on your hips.

-Next, lower into a squat as you step your right leg directly out to the side. Then step your right foot back in as you stand up and return to starting position.

-Alternate legs and continue.

The host of “The Biggest Loser,” Alison Sweeney, has many viewers wondering how she’s been able to get such a toned midsection. One of Sweeney’s moves combines a plank, push-up and a row to work abs, back and chest.

-Begin in a full plank position with a dumbbell in each hand and palms facing each other.

-Do a push-up and return to a full plank.

-Next bend your right elbow and bring the dumbbell to your ribs.

-Return the dumbbell to the floor and repeat with the left arm, all while holding the plank position.

-Try to complete as many reps as you can.

Now we can’t talk about celebrity fitness without talking about Cameron Diaz. Her most recent role in “The Green Hornet” left viewers wondering what kind of workout routine she does to maintain her toned physique. Diaz uses total body workouts to target multiple muscle groups. One of her favorite moves targets the glutes, quads and core and will definitely leave you out of breath.